CN100359823C - Apparatus and method for reusing satellite broadcast spectrum for terrestrially broadcast signals - Google Patents

Apparatus and method for reusing satellite broadcast spectrum for terrestrially broadcast signals Download PDF

Info

Publication number
CN100359823C
CN100359823C CNB971800235A CN97180023A CN100359823C CN 100359823 C CN100359823 C CN 100359823C CN B971800235 A CNB971800235 A CN B971800235A CN 97180023 A CN97180023 A CN 97180023A CN 100359823 C CN100359823 C CN 100359823C
Authority
CN
China
Prior art keywords
satellite
land
signal
antenna
frequency
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNB971800235A
Other languages
Chinese (zh)
Other versions
CN1238867A (en
Inventor
C·他因
S·他因
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BROADBAND INVESTMENTS Ltd
Original Assignee
Diversified Communication Engineering Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24938709&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CN100359823(C) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Diversified Communication Engineering Inc filed Critical Diversified Communication Engineering Inc
Publication of CN1238867A publication Critical patent/CN1238867A/en
Application granted granted Critical
Publication of CN100359823C publication Critical patent/CN100359823C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H40/00—Arrangements specially adapted for receiving broadcast information
    • H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving
    • H04H40/27—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95
    • H04H40/90—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for satellite broadcast receiving
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/18523—Satellite systems for providing broadcast service to terrestrial stations, i.e. broadcast satellite service
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
    • H04B7/18563—Arrangements for interconnecting multiple systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/20—Adaptations for transmission via a GHz frequency band, e.g. via satellite
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/06—Airborne or Satellite Networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Radio Relay Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

A first antenna (16) at a user location (14) receives signals at a first frequency where the signals are travelling only within a first directional reception range as measured from a centerline (28) of the first antenna (16). The first antenna (16) has its centerline (28) aligned to receive direct broadcast satellite signals transmitted from a satellite in geosynchronous orbit about the earth. A second antenna (18) at the user location (14) receives signals at the first frequency where the signals are travelling only within a second directional reception range as measured from a centerline (30) of the second antenna (18). The second antenna (18) is aligned to receive signals transmitted at the first frequency from a terrestrial transmitting location remote from the user location. A terrestrial transmitter transmits signals at the first frequency and directionally within a terrestrial azimuth range from the terrestrial transmitting location. The terrestrial transmitting location is located with respect to the user location such that the terrestrial transmitter (20) transmits in directions only outside of the directional reception range of the first antenna (16). The satellite (12) is positioned with respect to the user location (14) such that the satellite transmits directional in directions outside of the directional reception range of the second antenna (18).

Description

Terrestrially broadcast signals utilizes the apparatus and method of satellite broadcast spectrum again
Technical field
The present invention relates to play and receive the apparatus and method of the data that comprise TV signal and voice signal, more particularly, the present invention relates to the apparatus and method of land emission and direct broadcasting satellite emission are provided on shared frequency simultaneously.
Background of invention
At present, can received television signal from the satellite of geostationary orbit.TV signal can be transmitted into satellite from land transmitter, emission again from the satellite then, thus make the land receiver in the certain geographical receiving area in the satellite sight line can receive signal.Except TV signal, the data of other type also can be given the user by the satellites transmits in the geostationary orbit.
Direct broadcasting satellite service (DBS) refers to directly the satellite transmits for the TV signal of each family that has the particular suitable signal receiver or user's use.The committee of united telecommunication has specialized in the electromagnetic spectrum of 12.2GHz to 12.7GHz DBS broadcasting and has used.16 signal carriers are positioned at the DBS frequency spectrum, and each carrier wave is loaded with several television channels.Compress technique according to being used for these signals does not rant out, can provide hundreds of frequencies separately by DBS.Opposite with existing satellite system, the maximum of DBS system is benefited and is, only needs small-sized parabolic shape antenna to receive the DBS signal, and the aligning of reception antenna is not very crucial.In addition, the DBS system will provide high-quality reception on any point in the geographical receiving area of satellite, need not to spend such as the required this land transmission line of cable TV.
Present regulation requires the DBS satellite to be separated from each other at least 9 degree on the synchronous camber line of the earth.Therefore, the reception antenna of DBS signal must be limited to the orientation range received signal at positive and negative 9 degree of measuring from center of antenna.Received signal will cause the interference of the signal that different satellites are launched on same frequency in the scope wideer than satellite spacing.
The 5th, 483, No. 663 United States Patent (USP)s are meant to have the system that a kind of like this receiver is arranged, and wherein DBS receives in similar frequency band with land signal.Indicated system can realize with a kind of many antenna configurations or with a single movably antenna in the 5th, 483, No. 663 United States Patent (USP)s.In many antenna configurations, two independent antennas are sent to a shared propagation path with received signal and handle, seem they be receive by individual antenna and from the emission of single position.In the individual antenna configuration, antenna is movably between the another location of position that receives the DBS signal and the land signal of reception.
The advantage of the 5th, 483, No. 663 described systems of United States Patent (USP) is, no matter local initial spike is TV signal or other data, can receive simultaneously with the DBS signal and is used for the identical device that the DBS signal is handled is handled.Local initial spike can be loaded with local program, and it can receive with the DBS program of this country or this area.
Yet, the 5th, 483, in the system described in No. 663 United States Patent (USP)s, because therefore received signal, can not receive land on shared frequency and the DBS signal in combination in time or receive on the same antenna structure on the different location simultaneously.
Although DBS has its advantage, the 5th, 483, No. 663 there is its advantage in the described system of United States Patent (USP),, the DBS system has taken a part of electromagnetic spectrum, otherwise this part frequency spectrum can use for land signal emission.
Brief summary of the invention
The purpose of this invention is to provide provides land simultaneously with same frequency and transmits and satellite emission signal.The present invention includes a kind ofly provides land and apparatus and method satellite-signal simultaneously with shared frequency.
Utilization has the reception antenna of limited directional reception scope and launches land signal and can realize purpose of the present invention on the direction that is different from the satellite-signal transmit direction.The present invention needs two independent reception antennas, presents to two groups of decodings and demodulation process system, to utilize received signal.Two reception antennas all are suitable for receiving the only signal in the certain orientation scope.This scope is from the central line measurement of specific antenna.
In order not disturb between the signal that guarantees satellite and land emission, the land azimuth coverage interior orientation outside the azimuth coverage of the signal of being launched an artificial satellite by single satellite or multi-satellite is launched land signal.Land launch azimuth angular region is chosen such that to be that it does not comprise that satellite signal receiving antenna must point to any direction from any satellite received signal.In order to cover the zone of bigger local reception, a plurality of land transmitters are dispersed on the equitant zone, directional transmissions district, to guarantee clearly to receive land signal on each position in the required service district.
From following description to preferred embodiment, and take accompanying drawing into consideration, these and other purpose, advantage and feature of the present invention will be very clearly.
The accompanying drawing summary
Fig. 1 shows the schematic diagram of a plurality of satellites with respect to the position relation of single land transmitter and receiver or customer location.
Fig. 2 is the schematic diagram that receives satellite and the land reception antenna structure that transmits on shared frequency.
Fig. 3 is the schematic diagram that allows at the interval of managing several required land transmitters of reception on the zone significantly.
The description of preferred embodiment
Satellite and the land device that transmits of providing simultaneously on same frequency of the present invention is provided Fig. 1 and 2.As shown in Figure 1, in geostationary orbit, can adopt system with one or more satellites.Fig. 1 illustrates four satellite 12a, 12b, 12c and 12d that spatially separate on four different directions that depart from customer location 14.In geostationary orbit, every satellite is with respect to earth surface, and therefore the position with respect to user 14 is maintained fixed.First antenna 16 and second antenna 18 lay respectively on the customer location 14, go through below with reference to Fig. 2.
Among these satellites 12a-12d each is arranged in the geostationary orbit about ground ball center, is positioned on the particular longitude and latitude of earth surface top.Known as one of skill in the art, reception antenna can point to required satellite position with the specific azimuth and the angle of pitch, from the particular satellite received signal.
At present, longitude of locating of all direct broadcasting satellites in the visual line of sight of North America and latitude require reception antenna with the direction to the south from the North America towards satellite received signal.Although in order to describe Fig. 1 of the present invention four satellite 12a-12d are shown here, more or less satellite that spatially separates can be arranged in the visual line of sight of certain geographic area.At present, eight satellites are arranged in the visual line of sight of North America.Table 1 has been listed longitude station and the azimuth and the angle of pitch of every satellite, and reception antenna must point to this orientation from Texan Jane Austen position, receives the signal of every satellite.All azimuth directions and pitch orientation are measured with respect to antenna centerline, will discuss at Fig. 2 below.Term " azimuth " is meant with respect to the reference direction such as positive north, is taken as the direction of 0 degree usually, and " angle of pitch " is meant the angle that antenna centerline makes progress in level.
Table 1
The satellite longitude The azimuth The angle of pitch
61.5 124.5 37.3
101 186.4 54.6
110 203.3 52.3
119 217.7 47.8
148 247.3 25.7
157 253.3 17.9
166 258.8 10.1
175 263.5 2.3
The DBS satellite is all launched unlike signal on identical frequency band.The committee of united telecommunication has broadcasted to DBS and has reserved 12.2GHz to 12.7GHz electromagnetic spectrum.In order to guarantee that two signals between the adjacent satellite do not disturb, must satisfy two conditions.At first, reception antenna must be limited to only received signal in certain range of receiving of antenna centerline.Secondly, satellite must separate in the space on the synchronous camber line of the earth, thereby can position reception antenna, makes and has only a satellite in emission in the directional reception scope of antenna.
According to present regulation, each DBS satellite must separate at least 9 degree on the synchronous camber line of the earth.Therefore, when when antenna centerline is measured, every DBS reception antenna must have plus or minus 9 degree or littler directional reception scope or apertures.Although present regulation requires to be not less than at interval 9 degree,, the invention is not restricted to this and separate angle.Yet according to the present invention, effective range of receiving of each first antenna or satellite earth antenna must be less than or equal to minimum satellite vehicle angle at interval.
Fig. 1 also illustrates land transmitter 20 can be to launch on one or more frequencies identical with one of DBS satellite institute emission spectrum.Land transmitter 20 is in certain transmitting boundary T interior orientation emission.Transmitting boundary T shown in Fig. 1 is 180 degree.Certainly, transmitting boundary can be greater than or less than this numeral.
Fig. 2 is illustrated in the antenna structure of the present invention 22 that is positioned among Fig. 1 on the customer location 14 by way of example.First antenna 16 is designed to receive the direct broadcasting satellite signal.First antenna 16 comprises the parabolic feed horn assembly 26 of collecting antenna 24 and receiving the signal that is collected antenna-reflected and concentrates.One of skill in the art will be appreciated that feed horn 26 comprises the probe of searching antenna receiving signal, and is not shown among Fig. 2.This probe feeds signals to the signal handling equipment of information extraction from received signal.This signal handling equipment is well-known prior art, does not constitute a part of the present invention.In addition, relevant professional will be appreciated that, can adopt the alternative feed horn assembly 26 of collecting the signal of polished object surface antenna 24 reflections of assembly of numerous species type.
First antenna 16 comprises antenna centerline 28.Represented as the frequency with received signal, first antenna 16 has the maximum directional reception scope d that measures from antenna centerline 28 MaxThe signal of propagating on direction outside this range of receiving of antenna centerline 28 or the aperture can not be received by first antenna 16.
Still with reference to figure 2, the antenna structure 22 that is positioned on the customer location 14 further comprises the land second independent antenna 18 that transmits of reception.Second antenna 18 is as shown in the feed horn type antenna, yet the professional who is familiar with present technique will be appreciated that second antenna can comprise circular waveguide antenna, plate aerial, slot antenna, dipole antenna or multistage dipole antenna.No matter antenna type how, antenna will comprise that one is searched the antenna received signal and the appropriate signals that this signal is fed to the appropriate signals treatment facility is searched assembly.This treatment facility is what to separate with the treatment facility of handling first antenna, 16 received signals.In addition, although second antenna 18 shown in the figure equally is connected to same structure with first antenna 16,, first and second antennas can separate fully.In any situation, second antenna 18 is preferably around vertical axis and rotates, and shown in B among Fig. 2, making antenna direction is the optimum reception that transmits to land.
The same with first antenna 16, second antenna 18 comprises center line 30, the directional reception scope r that only can receive in antenna centerline 30 MaxThe interior signal of propagating.The signal of propagating on the direction outside this range of receiving can not be received by second antenna 18.
With reference to figure 1, first antenna 16 of the present invention is directed to reception from one of satellite, for example the signal of satellite 12d again.For from satellite 12d received signal best, must make first antenna 16 be oriented in the certain azimuth and the angle of pitch, for example can be respectively that 247.3 degree and 25.7 are spent.The center line 30 of second antenna 18 is often referred to the land transmitting site to land transmitter 20, is level substantially.Ignore the pitching angular difference between each first antenna 16 and second antenna 18, the angle of cut between the center line 28 and 30 of two antennas is about 67.7 degree in this example.
In orientation shown in Figure 1, first antenna 16 can not receive the signal from land transmitter 20.Its reason be the phasing signal launched from land transmitter 20 all the direction outside the range of receiving of first antenna 16 propagate.Equally, satellite 12d with respect to the direction of customer location 14 emission outside the range of receiving of second antenna 18.Therefore, second antenna 18 can not receive the signal that satellite 12d is launched.In addition, in this example, second antenna can not receive any any signal of being launched among the satellite 12a-12d.Therefore, in the orientation of as shown in Figure 1 first antenna 16 and second antenna 18 and position with satellite 12a-12d and land transmitter 20, land transmitter can be launched on the frequency identical with the frequency of satellite emission signal, and the signal that is received on two antennas is without any interference.
The personnel that are familiar with prior art will be appreciated that, the angle of pitch of first antenna 16 can be enough high with respect to horizontal line, so that second antenna 18 can aim at along the azimuth identical with first antenna, and by two antennas between the signal that is received on the same frequency without any interference.Yet, exist many to have the place of the satellite of the different orientations and the angle of pitch with respect to customer location 14, first antenna 16 and second antenna 18 can be positioned on as shown in Figure 1 the different azimuth, with anti-tampering.
With reference to figure 3, need provide intensity to be enough to received signal on big zone with a plurality of land transmitters 32.Each transmitter 32 among Fig. 3 is launched at about 180 azimuth coverage A and the longest effective receiving range R interior orientation.Adopt this transmitter at interval and transmitting range, can receive signal on any position in the G of geographic area from land transmitter.Although for the azimuth coverage that there is shown 180 for example,, within the scope of the invention, land emission can fix on other scope.
The method according to this invention comprises the satellite-signal that receives first frequency with first antenna 16.First antenna 16 is suitable for receiving only at the signal in the first directional reception scope of antenna centerline 28.This method also comprises in the scope outside first antenna, the 16 directional reception scopes with first frequency directional transmissions signal.The signal of being launched by land transmitter is received by second antenna of customer location 14.Second antenna only also is suitable for receiving with respect to the signal in the directional reception scope of antenna centerline 30.
Directional receiving antenna 16 and this combination of 18 and directed land emission allow with satellite, particularly the frequency that the DBS frequency of utilization is identical is carried out land emission, and does not disturb between two kinds of emissions.This just allows a DBS frequency spectrum, and perhaps other satellite frequency spectrum is by the utilization again of land emission institute.Land emission can be TV signal or any other data, comprises the data of Internet traffic, speech data, other video or other any kind.
Preferred embodiment described above attempts to illustrate principle of the present invention, rather than limits the scope of the invention.Only otherwise deviate from the scope of following claim, the personnel that are familiar with prior art can make various other embodiment and to the improvement of these preferred embodiments.

Claims (35)

1. one kind provides transmit device with the direct broadcasting satellite signal that satellite is launched on being arranged in geostationary orbit first satellite position of land on the shared frequency simultaneously, it is characterized in that described device comprises:
(a) be positioned at first antenna on the customer location, only receive at the signal in the first directional reception scope of the central line measurement of first antenna with first frequency, the center line that makes first antenna is in alignment with receiving the direct broadcasting satellite signal that this satellite is launched;
(b) be positioned at second antenna on the customer location, only receive at the signal in the second directional reception scope of the central line measurement of second antenna with first frequency, make second antenna alignment in the signal that receives from being launched with first frequency away from the land transmitting site of customer location, the direct broadcasting satellite signal is to launch on the direction outside the second directional reception scope; With
(c) land transmitter, transmit with first frequency and at the land bearing range interior orientation that departs from land transmitter site, land transmitter site is to locate like this with respect to customer location, and promptly land transmitter is only launched on the direction outside the directional reception scope of first antenna.
2. device as claimed in claim 1, wherein, the direct broadcasting satellite signal is with many additional satellites transmits of first frequency from geostationary orbit, and wherein, land transmitter is located like this with respect to customer location, make land transmitter only on the direction beyond the directional reception scope of first antenna, launch to customer location, first antenna any locational be oriented to it can receive from first satellite position in satellite emission or from a plurality of additional satellites in the emission of any one satellite.
3. device as claimed in claim 2 is characterized in that further comprising:
(a) a plurality of land transmitters, each transmitter is launched from different land transmitting sites, and each transmitter is launched with common substantially azimuth coverage.
4. device as claimed in claim 1 is characterized in that: described first frequency is in the scope of 12.2GHz to 12.7GHz.
5. device as claimed in claim 1 is characterized in that: described first frequency is higher than 12.2GHz.
6. device as claimed in claim 1 is characterized in that: described second antenna is selected from one group of antenna being made up of circular waveguide antenna, feed horn antenna, plate aerial, slot antenna, dipole antenna or multistage dipole antenna.
7. device as claimed in claim 1 is characterized in that: the directional reception scope of first antenna is about 9 degree.
8. one kind provides land on the shared frequency to transmit and method from the direct broadcasting satellite signal of satellites transmits simultaneously, and satellite described here is arranged in first satellite position of geostationary orbit, it is characterized in that described method comprises step:
(a) on customer location, receive the direct broadcasting satellite signal of first frequency with first antenna, first antenna only is suitable for receiving the signal at the first frequency in the first directional reception scope of the central line measurement of first antenna;
(b) from land transmitter with first frequency and the land signal of emission in the bearing range by land, land azimuth coverage is outside the directional reception scope of first antenna, first antenna is located in the direct broadcasting satellite signal that receives satellite; With
(c) on customer location away from land transmitter, receive land signal with second antenna, second antenna only is suitable for receiving the signal at the first frequency in the second directional reception scope of the central line measurement of second antenna, making second antenna alignment, is not to launch in the directional reception scope of second antenna thereby make the direct broadcasting satellite signal of satellites transmits.
9. method as claimed in claim 8 is characterized in that further comprising step:
(a) from a plurality of additional land transmitters with first frequency and by land azimuth coverage launch land signal, it is a plurality of that to add land transmitters spatially spaced apart so that continuous basically land service area to be provided.
10. method as claimed in claim 8 is characterized in that: described first frequency is in the scope of 12.2GHz to 12.7GHz.
11. method as claimed in claim 8 is characterized in that: described first frequency is higher than 12.2GHz.
12. method as claimed in claim 8 is characterized in that: the orientation range of first antenna is for departing from about 9 degree of this antenna centerline.
13. land signal and device of launching simultaneously on the shared frequency from the satellite-signal of satellites transmits, described satellite with first frequency to the customer location signal of launching an artificial satellite, only be used for it is characterized in that described device comprises about the reception in the satellite orientation range of receiving of this customer location:
(a) with the directed land transmitter of first frequency at the land signal of emission in the limited azimuth coverage of land transmitter site, land transmitter is to locate like this with respect to customer location, and promptly land transmitter is launched to customer location along the route outside the satellite orientation range of receiving.
14. device as claimed in claim 13, it is characterized in that: satellite-signal is that the multi-satellite from geostationary orbit is launched, the angle that every each satellite of satellite and other separates on the synchronous camber line of the earth is greater than 1/2nd of satellite orientation range of receiving, and these satellites only in about the combination satellite signal transmitting boundary of customer location together to the customer location signal of launching an artificial satellite, here:
(a) land transmitter only on the direction outside the combination satellite signal transmitting boundary and with combination satellite signal firing zone boundary outside satellite orientation range of receiving 1/2nd angle same launch.
15. device as claimed in claim 14 is characterized in that further comprising:
(a) a plurality of land directional transmitters, each transmitter is launched from different land transmitting sites, and each transmitter carries out directional transmissions at limited azimuth coverage.
16. device as claimed in claim 13 is characterized in that: described first frequency is in the scope of 12.2GHz to 12.7GHz.
17. device as claimed in claim 13 is characterized in that: described first frequency is higher than 12.2GHz.
18. device as claimed in claim 13 is characterized in that: the satellite orientation range of receiving is about 18 degree.
19. one kind provides the land signal and method from the satellite-signal of satellites transmits on the shared frequency simultaneously, satellite described here is launched along the satellites transmits axle that extends to land customer location from satellite with first frequency, it is characterized in that described method comprises step:
(a) in limited azimuth coverage, launch land signal with first frequency from land transmitter, land transmitter is to locate like this with respect to customer location, promptly along launching to customer location about the transmission route outside the satellite orientation range of receiving of customer location, wherein the satellite orientation range of receiving comprises the center limited orientation range on the satellites transmits axle basically.
20. method as claimed in claim 19 is characterized in that further comprising step:
(a) on the different positions from a plurality of land transmitters with first frequency and in limited azimuth coverage the land signal of emission.
21. method as claimed in claim 19 is characterized in that: described first frequency is in the scope of 12.2GHz to 12.7GHz.
22. method as claimed in claim 19 is characterized in that: described first frequency is higher than 12.2GHz.
23. method as claimed in claim 19 is characterized in that: the satellite orientation range of receiving is about 18 degree.
24. device of being convenient to the land use that transmits, described land transmitting is to launch simultaneously on shared frequency Yu from the satellite-signal of satellites transmits, this satellite along the satellites transmits axle with first frequency to the land customer location signal of launching an artificial satellite, it is characterized in that described device comprises:
(a) be used for launching to customer location the land transmitter of land signal with first frequency, this land transmitter is to locate like this with respect to customer location, promptly along launching to customer location about the route outside the satellite orientation range of receiving of customer location, wherein the satellite orientation range of receiving comprises the center limited orientation range on the emission shaft of position basically; And
(b) the land reception antenna on the customer location, be used to receive only at signal about the first frequency in the land directional reception scope of land antenna centerline, land antenna is aimed at, to receive signal with the first frequency emission from land transmitter site, with land antenna is aimed at, thereby make the satellites transmits axle by land outside the directional reception scope.
25. device as claimed in claim 24, wherein, described satellite-signal is that the multi-satellite from geostationary orbit is launched, the angle that every each satellite of satellite and other separates on the synchronous camber line of the earth is greater than the angle of satellite orientation range of receiving 1/2nd, and these satellites only in about the combination satellite signal transmitting boundary of customer location together to the customer location signal of launching an artificial satellite, here:
(a) land transmitter only on the direction outside the combination satellite signal transmitting boundary and with combination satellite signal firing zone boundary outside satellite orientation range of receiving 1/2nd angle same launch.
26. device as claimed in claim 25 is characterized in that further comprising:
(a) a plurality of land transmitters, each transmitter is launched from different land transmitting sites, and each transmitter carries out directional transmissions at limited azimuth coverage.
27. device as claimed in claim 24 is characterized in that: described first frequency is in the scope of 12.2GHz to 12.7GHz.
28. device as claimed in claim 24 is characterized in that: described first frequency is higher than 12.2GHz.
29. device as claimed in claim 24 is characterized in that: the satellite orientation range of receiving is about 18 degree.
30. land signal and device of launching simultaneously on the shared frequency from the satellite-signal of satellites transmits, described satellite with first frequency to the customer location signal of launching an artificial satellite, only be used for it is characterized in that described device comprises about the reception in the satellite orientation range of receiving of this customer location:
(a) be used for first frequency from one fixedly onshore location launch the directed land transmitter of land signal, be somebody's turn to do the fixedly geometrical relationship of fixedly onshore location formation and customer location and satellite, land transmitter is to locate like this with respect to customer location, and promptly land transmitter is along launching to customer location about the route outside the satellite orientation range of receiving of customer location.
31. device as claimed in claim 30, it is characterized in that: satellite-signal is that the multi-satellite from geostationary orbit is launched, the angle that every each satellite of satellite and other separates on the synchronous camber line of the earth is greater than 1/2nd of satellite orientation range of receiving, and these satellites only in about the combination satellite signal transmitting boundary of customer location together to the customer location signal of launching an artificial satellite, here:
(a) land transmitter only on the direction outside the combination satellite signal transmitting boundary and with combination satellite signal firing zone boundary outside satellite orientation range of receiving 1/2nd angle same launch.
32. device as claimed in claim 31 is characterized in that further comprising:
(a) a plurality of land transmitters, each transmitter is launched from different fixing land transmitting sites, the fixedly geometrical relationship of this position formation and satellite and customer location.
33. device as claimed in claim 30 is characterized in that: described first frequency is in the scope of 12.2GHz to 12.7GHz.
34. device as claimed in claim 30 is characterized in that: described first frequency is higher than 12.2GHz.
35. device as claimed in claim 30 is characterized in that: the satellite orientation range of receiving is about 18 degree.
CNB971800235A 1996-10-11 1997-10-09 Apparatus and method for reusing satellite broadcast spectrum for terrestrially broadcast signals Expired - Fee Related CN100359823C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/731,244 US5761605A (en) 1996-10-11 1996-10-11 Apparatus and method for reusing satellite broadcast spectrum for terrestrially broadcast signals
US08/731,244 1996-10-11

Publications (2)

Publication Number Publication Date
CN1238867A CN1238867A (en) 1999-12-15
CN100359823C true CN100359823C (en) 2008-01-02

Family

ID=24938709

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB971800235A Expired - Fee Related CN100359823C (en) 1996-10-11 1997-10-09 Apparatus and method for reusing satellite broadcast spectrum for terrestrially broadcast signals

Country Status (14)

Country Link
US (6) US5761605A (en)
EP (1) EP0934636B1 (en)
JP (1) JP2001514810A (en)
KR (1) KR100415416B1 (en)
CN (1) CN100359823C (en)
AT (1) ATE286328T1 (en)
AU (1) AU721537B2 (en)
BR (1) BR9712232A (en)
CA (1) CA2268393C (en)
DE (1) DE69732128D1 (en)
HK (1) HK1023462A1 (en)
NZ (1) NZ335562A (en)
RU (1) RU2196386C2 (en)
WO (1) WO1998017022A2 (en)

Families Citing this family (136)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6408180B1 (en) * 1992-03-06 2002-06-18 Aircell, Inc. Ubiquitous mobile subscriber station
US7714778B2 (en) * 1997-08-20 2010-05-11 Tracbeam Llc Wireless location gateway and applications therefor
US6892050B1 (en) 1996-10-11 2005-05-10 Northpoint Technology, Ltd. Apparatus and method for transmitting terrestrial signals on a common frequency with satellite transmissions
US5761605A (en) * 1996-10-11 1998-06-02 Northpoint Technology, Ltd. Apparatus and method for reusing satellite broadcast spectrum for terrestrially broadcast signals
AU767516C (en) * 1997-12-16 2005-09-29 Northpoint Technology, Ltd Apparatus and method for reusing satellite broadcast spectrum for terrestrially broadcast signals
DE69839850D1 (en) * 1997-12-16 2008-09-18 Northpoint Technology Ltd METHOD AND DEVICE FOR THE RE-USE OF THE RADIO FREQUENCY RADIO SATELLITE RADIO FOR TERRESTRIAL BROADCASTING
US6208636B1 (en) 1998-05-28 2001-03-27 Northpoint Technology, Ltd. Apparatus and method for processing signals selected from multiple data streams
US6252547B1 (en) * 1998-06-05 2001-06-26 Decisionmark Corp. Method and apparatus for limiting access to signals delivered via the internet
US6735437B2 (en) 1998-06-26 2004-05-11 Hughes Electronics Corporation Communication system employing reuse of satellite spectrum for terrestrial communication
EP1030522A1 (en) * 1999-02-16 2000-08-23 Koninklijke Philips Electronics N.V. Method for transmitting upstream signals to a satellite from a video communication signals distribution network
US6225961B1 (en) * 1999-07-27 2001-05-01 Prc Inc. Beam waveguide antenna with independently steerable antenna beams and method of compensating for planetary aberration in antenna beam tracking of spacecraft
US6522865B1 (en) 1999-08-10 2003-02-18 David D. Otten Hybrid satellite communications system
US7174127B2 (en) * 1999-08-10 2007-02-06 Atc Technologies, Llc Data communications systems and methods using different wireless links for inbound and outbound data
US20030149986A1 (en) * 1999-08-10 2003-08-07 Mayfield William W. Security system for defeating satellite television piracy
US7123875B1 (en) * 1999-11-04 2006-10-17 Xm Satellite Radio, Inc. System and method for multipoint distribution of satellite digital audio radio service
US6778810B1 (en) * 1999-12-03 2004-08-17 The Directtv Group, Inc. Method and apparatus for mitigating interference from terrestrial broadcasts sharing the same channel with satellite broadcasts using an antenna with posterior sidelobes
US6456851B1 (en) * 2000-03-06 2002-09-24 Aurora Networks, Inc. Wireless communications architecture
FR2807901B1 (en) * 2000-04-14 2002-11-15 Thomson Broadcast Systems DEVICE FOR VIDEO TRANSMISSION BETWEEN A CAMERA AND A CONTROL PANEL
US6859652B2 (en) * 2000-08-02 2005-02-22 Mobile Satellite Ventures, Lp Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis
US7558568B2 (en) * 2003-07-28 2009-07-07 Atc Technologies, Llc Systems and methods for modifying antenna radiation patterns of peripheral base stations of a terrestrial network to allow reduced interference
US8265637B2 (en) 2000-08-02 2012-09-11 Atc Technologies, Llc Systems and methods for modifying antenna radiation patterns of peripheral base stations of a terrestrial network to allow reduced interference
US6892068B2 (en) * 2000-08-02 2005-05-10 Mobile Satellite Ventures, Lp Coordinated satellite-terrestrial frequency reuse
US7369809B1 (en) * 2000-10-30 2008-05-06 The Directv Group, Inc. System and method for continuous broadcast service from non-geostationary orbits
US7792488B2 (en) 2000-12-04 2010-09-07 Atc Technologies, Llc Systems and methods for transmitting electromagnetic energy over a wireless channel having sufficiently weak measured signal strength
US6950625B2 (en) * 2001-02-12 2005-09-27 Ico Services Limited Communications apparatus and method
EA005472B1 (en) * 2001-02-12 2005-02-24 Ай Си О СЕРВИСИЗ ЛИМИТЕД Communication apparatus and method
US7308229B2 (en) * 2001-02-23 2007-12-11 Xanadoo Company System, apparatus and method for single-channel or multi-channel terrestrial communication
US7047029B1 (en) * 2001-09-10 2006-05-16 The Directv Group, Inc. Adaptive transmission system
US9485010B1 (en) 2001-09-10 2016-11-01 The Directv Group, Inc. Adaptive coding and modulation for spot beam satellite broadcast
US7664460B2 (en) * 2001-09-14 2010-02-16 Atc Technologies, Llc Systems and methods for terrestrial reuse of cellular satellite frequency spectrum in a time-division duplex and/or frequency-division duplex mode
US7792069B2 (en) * 2001-09-14 2010-09-07 Atc Technologies, Llc Systems and methods for terrestrial reuse of cellular satellite frequency spectrum using different channel separation technologies in forward and reverse links
US6684057B2 (en) 2001-09-14 2004-01-27 Mobile Satellite Ventures, Lp Systems and methods for terrestrial reuse of cellular satellite frequency spectrum
US6999720B2 (en) * 2001-09-14 2006-02-14 Atc Technologies, Llc Spatial guardbands for terrestrial reuse of satellite frequencies
US7113778B2 (en) * 2001-09-14 2006-09-26 Atc Technologies, Llc Aggregate radiated power control for multi-band/multi-mode satellite radiotelephone communications systems and methods
US7603117B2 (en) 2001-09-14 2009-10-13 Atc Technologies, Llc Systems and methods for terrestrial use of cellular satellite frequency spectrum
US7031702B2 (en) * 2001-09-14 2006-04-18 Atc Technologies, Llc Additional systems and methods for monitoring terrestrially reused satellite frequencies to reduce potential interference
US7181161B2 (en) * 2001-09-14 2007-02-20 Atc Technologies, Llc Multi-band/multi-mode satellite radiotelephone communications systems and methods
US7155340B2 (en) * 2001-09-14 2006-12-26 Atc Technologies, Llc Network-assisted global positioning systems, methods and terminals including doppler shift and code phase estimates
US7593724B2 (en) 2001-09-14 2009-09-22 Atc Technologies, Llc Systems and methods for terrestrial reuse of cellular satellite frequency spectrum in a time-division duplex mode
US7603081B2 (en) * 2001-09-14 2009-10-13 Atc Technologies, Llc Radiotelephones and operating methods that use a single radio frequency chain and a single baseband processor for space-based and terrestrial communications
US7623859B2 (en) * 2001-09-14 2009-11-24 Atc Technologies, Llc Additional aggregate radiated power control for multi-band/multi-mode satellite radiotelephone communications systems and methods
US7039400B2 (en) * 2001-09-14 2006-05-02 Atc Technologies, Llc Systems and methods for monitoring terrestrially reused satellite frequencies to reduce potential interference
US7006789B2 (en) * 2001-09-14 2006-02-28 Atc Technologies, Llc Space-based network architectures for satellite radiotelephone systems
US7447501B2 (en) * 2001-09-14 2008-11-04 Atc Technologies, Llc Systems and methods for monitoring selected terrestrially used satellite frequency signals to reduce potential interference
US7062267B2 (en) * 2001-09-14 2006-06-13 Atc Technologies, Llc Methods and systems for modifying satellite antenna cell patterns in response to terrestrial reuse of satellite frequencies
US7890098B2 (en) * 2001-09-14 2011-02-15 Atc Technologies, Llc Staggered sectorization for terrestrial reuse of satellite frequencies
US6785543B2 (en) 2001-09-14 2004-08-31 Mobile Satellite Ventures, Lp Filters for combined radiotelephone/GPS terminals
US7218931B2 (en) * 2001-09-14 2007-05-15 Atc Technologies, Llc Satellite radiotelephone systems providing staggered sectorization for terrestrial reuse of satellite frequencies and related methods and radiotelephone systems
US8270898B2 (en) * 2001-09-14 2012-09-18 Atc Technologies, Llc Satellite-band spectrum utilization for reduced or minimum interference
US6611238B1 (en) 2001-11-06 2003-08-26 Hughes Electronics Corporation Method and apparatus for reducing earth station interference from non-GSO and terrestrial sources
US6856787B2 (en) 2002-02-12 2005-02-15 Mobile Satellite Ventures, Lp Wireless communications systems and methods using satellite-linked remote terminal interface subsystems
US7593691B2 (en) * 2002-02-12 2009-09-22 Atc Technologies, Llc Systems and methods for controlling a level of interference to a wireless receiver responsive to a power level associated with a wireless transmitter
US7292547B1 (en) * 2002-05-22 2007-11-06 The Directv Group, Inc. Device and method for nodal multiple access into communications channels
US6937857B2 (en) 2002-05-28 2005-08-30 Mobile Satellite Ventures, Lp Systems and methods for reducing satellite feeder link bandwidth/carriers in cellular satellite systems
JP3923405B2 (en) * 2002-10-09 2007-05-30 シャープ株式会社 Low noise converter
US7092708B2 (en) * 2002-12-12 2006-08-15 Atc Technologies, Llc Systems and methods for increasing capacity and/or quality of service of terrestrial cellular and satellite systems using terrestrial reception of satellite band frequencies
US7421342B2 (en) * 2003-01-09 2008-09-02 Atc Technologies, Llc Network-assisted global positioning systems, methods and terminals including doppler shift and code phase estimates
US6975837B1 (en) 2003-01-21 2005-12-13 The Directv Group, Inc. Method and apparatus for reducing interference between terrestrially-based and space-based broadcast systems
US7444170B2 (en) * 2003-03-24 2008-10-28 Atc Technologies, Llc Co-channel wireless communication methods and systems using nonsymmetrical alphabets
US7203490B2 (en) 2003-03-24 2007-04-10 Atc Technologies, Llc Satellite assisted push-to-send radioterminal systems and methods
US6879829B2 (en) * 2003-05-16 2005-04-12 Mobile Satellite Ventures, Lp Systems and methods for handover between space based and terrestrial radioterminal communications, and for monitoring terrestrially reused satellite frequencies at a radioterminal to reduce potential interference
US20040240525A1 (en) * 2003-05-29 2004-12-02 Karabinis Peter D. Wireless communications methods and apparatus using licensed-use system protocols with unlicensed-use access points
US7653349B1 (en) 2003-06-18 2010-01-26 The Directv Group, Inc. Adaptive return link for two-way satellite communication systems
US7286795B2 (en) * 2003-07-23 2007-10-23 Mds America, Inc. System and method for effective reception and transmission of satellite signals
US7340213B2 (en) * 2003-07-30 2008-03-04 Atc Technologies, Llc Intra- and/or inter-system interference reducing systems and methods for satellite communications systems
US8670705B2 (en) * 2003-07-30 2014-03-11 Atc Technologies, Llc Additional intra-and/or inter-system interference reducing systems and methods for satellite communications systems
US20050041619A1 (en) * 2003-08-22 2005-02-24 Karabinis Peter D. Wireless systems, methods and devices employing forward- and/or return-link carriers having different numbers of sub-band carriers
US7113743B2 (en) * 2003-09-11 2006-09-26 Atc Technologies, Llc Systems and methods for inter-system sharing of satellite communications frequencies within a common footprint
CN1857022B (en) 2003-09-23 2011-07-06 Atc科技有限责任公司 Systems and methods for mobility management in overlaid satellite and terrestrial communications systems
US8380186B2 (en) 2004-01-22 2013-02-19 Atc Technologies, Llc Satellite with different size service link antennas and radioterminal communication methods using same
US8655398B2 (en) 2004-03-08 2014-02-18 Atc Technologies, Llc Communications systems and methods including emission detection
US7418236B2 (en) * 2004-04-20 2008-08-26 Mobile Satellite Ventures, Lp Extraterrestrial communications systems and methods including ancillary extraterrestrial components
US7453920B2 (en) 2004-03-09 2008-11-18 Atc Technologies, Llc Code synchronization in CDMA satellite wireless communications system using uplink channel detection
US7933552B2 (en) * 2004-03-22 2011-04-26 Atc Technologies, Llc Multi-band satellite and/or ancillary terrestrial component radioterminal communications systems and methods with combining operation
US7606590B2 (en) * 2004-04-07 2009-10-20 Atc Technologies, Llc Satellite/hands-free interlock systems and/or companion devices for radioterminals and related methods
US7636566B2 (en) * 2004-04-12 2009-12-22 Atc Technologies, Llc Systems and method with different utilization of satellite frequency bands by a space-based network and an ancillary terrestrial network
US20050239399A1 (en) * 2004-04-21 2005-10-27 Karabinis Peter D Mobile terminals and set top boxes including multiple satellite band service links, and related systems and methods
US8265549B2 (en) * 2004-05-18 2012-09-11 Atc Technologies, Llc Satellite communications systems and methods using radiotelephone
US20050260984A1 (en) * 2004-05-21 2005-11-24 Mobile Satellite Ventures, Lp Systems and methods for space-based use of terrestrial cellular frequency spectrum
US7706748B2 (en) * 2004-06-25 2010-04-27 Atc Technologies, Llc Methods of ground based beamforming and on-board frequency translation and related systems
EP1776778A2 (en) 2004-08-11 2007-04-25 ATC Technologies, LLC System for reduction of interference between different communications systems
US20060094420A1 (en) * 2004-11-02 2006-05-04 Karabinis Peter D Multi frequency band/multi air interface/multi spectrum reuse cluster size/multi cell size satellite radioterminal communicaitons systems and methods
US7639981B2 (en) * 2004-11-02 2009-12-29 Atc Technologies, Llc Apparatus and methods for power control in satellite communications systems with satellite-linked terrestrial stations
US7653348B2 (en) * 2004-11-16 2010-01-26 Atc Technologies, Llc Satellite communications systems, components and methods for operating shared satellite gateways
US7747229B2 (en) * 2004-11-19 2010-06-29 Atc Technologies, Llc Electronic antenna beam steering using ancillary receivers and related methods
US7454175B2 (en) 2004-12-07 2008-11-18 Atc Technologies, Llc Broadband wireless communications systems and methods using multiple non-contiguous frequency bands/segments
US8594704B2 (en) * 2004-12-16 2013-11-26 Atc Technologies, Llc Location-based broadcast messaging for radioterminal users
CN101980456A (en) 2005-01-05 2011-02-23 Atc科技有限责任公司 Adaptive beam forming with multi-user detection and interference reduction in satellite communiation systems and methods
US7596111B2 (en) * 2005-01-27 2009-09-29 Atc Technologies, Llc Satellite/terrestrial wireless communications systems and methods using disparate channel separation codes
US7738837B2 (en) * 2005-02-22 2010-06-15 Atc Technologies, Llc Satellites using inter-satellite links to create indirect feeder link paths
US7636546B2 (en) * 2005-02-22 2009-12-22 Atc Technologies, Llc Satellite communications systems and methods using diverse polarizations
WO2006091605A2 (en) * 2005-02-22 2006-08-31 Atc Technologies, Llc Reusing frequencies of a fixed and/or mobile communications system
US7756490B2 (en) * 2005-03-08 2010-07-13 Atc Technologies, Llc Methods, radioterminals, and ancillary terrestrial components for communicating using spectrum allocated to another satellite operator
US7587171B2 (en) * 2005-03-09 2009-09-08 Atc Technologies, Llc Reducing interference in a wireless communications signal in the frequency domain
US7796986B2 (en) * 2005-03-11 2010-09-14 Atc Technologies, Llc Modification of transmission values to compensate for interference in a satellite down-link communications
US7627285B2 (en) * 2005-03-14 2009-12-01 Atc Technologies, Llc Satellite communications systems and methods with distributed and/or centralized architecture including ground-based beam forming
WO2006099501A1 (en) * 2005-03-15 2006-09-21 Atc Technologies, Llc Methods and systems providing adaptive feeder links for ground based beam forming and related systems and satellites
WO2006099443A1 (en) * 2005-03-15 2006-09-21 Atc Technologies, Llc Intra-system and/or inter-system reuse of feeder link frequencies including interference suppression systems and methods
US7453396B2 (en) * 2005-04-04 2008-11-18 Atc Technologies, Llc Radioterminals and associated operating methods that alternate transmission of wireless communications and processing of global positioning system signals
DE102005027453A1 (en) * 2005-06-14 2006-12-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Terrestrial transmitting station for broadcasting a terrestrial broadcasting signal, satellite-based broadcasting system and receiver for a satellite-based broadcasting system
US7817967B2 (en) * 2005-06-21 2010-10-19 Atc Technologies, Llc Communications systems including adaptive antenna systems and methods for inter-system and intra-system interference reduction
US7970345B2 (en) 2005-06-22 2011-06-28 Atc Technologies, Llc Systems and methods of waveform and/or information splitting for wireless transmission of information to one or more radioterminals over a plurality of transmission paths and/or system elements
US7907944B2 (en) * 2005-07-05 2011-03-15 Atc Technologies, Llc Methods, apparatus and computer program products for joint decoding of access probes in a CDMA communications system
US8190114B2 (en) 2005-07-20 2012-05-29 Atc Technologies, Llc Frequency-dependent filtering for wireless communications transmitters
US7623867B2 (en) * 2005-07-29 2009-11-24 Atc Technologies, Llc Satellite communications apparatus and methods using asymmetrical forward and return link frequency reuse
US7461756B2 (en) * 2005-08-08 2008-12-09 Plastipak Packaging, Inc. Plastic container having a freestanding, self-supporting base
EP1913709B1 (en) 2005-08-09 2010-04-28 ATC Technologies, LLC Satellite communications systems and methods using substantially co-located feeder link antennas
US20070123252A1 (en) * 2005-10-12 2007-05-31 Atc Technologies, Llc Systems, methods and computer program products for mobility management in hybrid satellite/terrestrial wireless communications systems
US20070135040A1 (en) * 2005-12-12 2007-06-14 Draim John E Methods for effecting seamless handover and enhancing capacity in elliptical orbit satellite communications systems
WO2007084682A1 (en) * 2006-01-20 2007-07-26 Atc Technologies, Llc Systems and methods for forward link closed loop beamforming
US8705436B2 (en) * 2006-02-15 2014-04-22 Atc Technologies, Llc Adaptive spotbeam broadcasting, systems, methods and devices for high bandwidth content distribution over satellite
US20070202804A1 (en) * 2006-02-28 2007-08-30 Vrd Technologies, Inc. Satellite signal relay and receiver
US7751823B2 (en) * 2006-04-13 2010-07-06 Atc Technologies, Llc Systems and methods for controlling a level of interference to a wireless receiver responsive to an activity factor associated with a wireless transmitter
US8923850B2 (en) 2006-04-13 2014-12-30 Atc Technologies, Llc Systems and methods for controlling base station sectors to reduce potential interference with low elevation satellites
US9014619B2 (en) 2006-05-30 2015-04-21 Atc Technologies, Llc Methods and systems for satellite communications employing ground-based beam forming with spatially distributed hybrid matrix amplifiers
US8169955B2 (en) * 2006-06-19 2012-05-01 Atc Technologies, Llc Systems and methods for orthogonal frequency division multiple access (OFDMA) communications over satellite links
US8526941B2 (en) * 2006-06-29 2013-09-03 Atc Technologies, Llc Apparatus and methods for mobility management in hybrid terrestrial-satellite mobile communications systems
US8031646B2 (en) * 2007-05-15 2011-10-04 Atc Technologies, Llc Systems, methods and devices for reusing spectrum of another operator
US9559768B2 (en) * 2007-05-25 2017-01-31 Telefonaktiebolaget Lm Ericsson (Publ) Same frequency satellite terrestrial radio broadcast
US8302033B2 (en) * 2007-06-22 2012-10-30 Apple Inc. Touch screen device, method, and graphical user interface for providing maps, directions, and location-based information
US8064824B2 (en) * 2007-07-03 2011-11-22 Atc Technologies, Llc Systems and methods for reducing power robbing impact of interference to a satellite
US7978135B2 (en) * 2008-02-15 2011-07-12 Atc Technologies, Llc Antenna beam forming systems/methods using unconstrained phase response
US8155880B2 (en) * 2008-05-09 2012-04-10 Locomatix Inc. Location tracking optimizations
US8433241B2 (en) 2008-08-06 2013-04-30 Atc Technologies, Llc Systems, methods and devices for overlaid operations of satellite and terrestrial wireless communications systems
US8193975B2 (en) 2008-11-12 2012-06-05 Atc Technologies Iterative antenna beam forming systems/methods
US7969923B2 (en) 2008-11-14 2011-06-28 Dbsd Satellite Services G.P. Asymmetric TDD in flexible use spectrum
US8339308B2 (en) * 2009-03-16 2012-12-25 Atc Technologies Llc Antenna beam forming systems, methods and devices using phase adjusted least squares beam forming
US8520561B2 (en) * 2009-06-09 2013-08-27 Atc Technologies, Llc Systems, methods and network components that provide different satellite spot beam return carrier groupings and reuse patterns
US8368611B2 (en) * 2009-08-01 2013-02-05 Electronic Controlled Systems, Inc. Enclosed antenna system for receiving broadcasts from multiple sources
EP2484027B1 (en) 2009-09-28 2017-03-29 ATC Technologies, LLC Systems and methods for adaptive interference cancellation beamforming
US10110288B2 (en) * 2009-11-04 2018-10-23 Atc Technologies, Llc Frequency division duplex (FDD) return link transmit diversity systems, methods and devices using forward link side information
US8274925B2 (en) * 2010-01-05 2012-09-25 Atc Technologies, Llc Retaining traffic channel assignments for satellite terminals to provide lower latency communication services
US8756636B1 (en) * 2010-07-20 2014-06-17 The Directv Group, Inc. Method and system for testing an integrated receiver decoder with signals from outside the local market area
US8789116B2 (en) 2011-11-18 2014-07-22 Electronic Controlled Systems, Inc. Satellite television antenna system
KR20160000274A (en) 2014-06-24 2016-01-04 주식회사 오리엔텍 Vibration motor
US10298315B2 (en) * 2017-06-30 2019-05-21 Hughes Network Systems, Llc Interference level variation mitigation for satellite communicaton systems

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5038151A (en) * 1989-07-31 1991-08-06 Loral Aerospace Corp. Simultaneous transmit and receive antenna
US5515058A (en) * 1994-06-09 1996-05-07 Thomson Consumer Electronics, Inc. Antenna alignment apparatus and method utilizing the error condition of the received signal
EP0725456A2 (en) * 1995-02-06 1996-08-07 Hughes Aircraft Company Apparatus for positioning an antenna in a remote ground terminal

Family Cites Families (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2653238A (en) * 1945-10-26 1953-09-22 Kenneth T Bainbridge Dual frequency antenna
DE1221694B (en) * 1961-07-07 1966-07-28 Siemens Ag Device for eliminating the high-frequency energy components reflected by transmitting antennas
US3953702A (en) * 1974-08-13 1976-04-27 Texas Instruments Incorporated Solid state microwave oven power source
US4198639A (en) * 1978-12-26 1980-04-15 Cubic Corporation Parabolic and log periodic antennas combined for compact high-gain broadband antenna system
FR2465328A1 (en) * 1979-09-07 1981-03-20 Thomson Csf AIR FOR PRIMARY RADAR AND SECONDARY RADAR
JPS57154909A (en) * 1981-03-19 1982-09-24 Mitsubishi Electric Corp Frequency band shared antenna
USD275197S (en) 1982-03-08 1984-08-21 Hayes International Corporation Portable antenna ground scoring unit for air to ground gunnery
US4523155A (en) 1983-05-04 1985-06-11 Motorola, Inc. Temperature compensated automatic output control circuitry for RF signal power amplifiers with wide dynamic range
US4630108A (en) * 1984-03-26 1986-12-16 A. C. Nielsen Company Preprogrammed over-the-air marketing research system
US4613990A (en) 1984-06-25 1986-09-23 At&T Bell Laboratories Radiotelephone transmission power control
JPS61161057A (en) 1985-01-09 1986-07-21 Nec Corp One frequency repeater
USD304337S (en) 1986-05-19 1989-10-31 King Feng Co. Ltd. Indoor antenna
USD305766S (en) 1986-08-05 1990-01-30 King Feng Co., Ltd. Indoor antenna
KR920002046B1 (en) * 1987-01-20 1992-03-10 마쯔시다덴기산교 가부시기가이샤 Receiver
USD306862S (en) 1987-01-30 1990-03-27 Kent Sherman B Indoor television antenna
JPS63187926A (en) 1987-01-30 1988-08-03 Fujitsu General Ltd Communication system utilizing communication satellite
JPH0724390B2 (en) 1987-02-27 1995-03-15 日本電信電話株式会社 Multi-satellite satellite communication Earth station equipment
US5041840A (en) * 1987-04-13 1991-08-20 Frank Cipolla Multiple frequency antenna feed
US5125109A (en) * 1988-06-23 1992-06-23 Comsat Low noise block down-converter for direct broadcast satellite receiver integrated with a flat plate antenna
FR2649570B1 (en) * 1989-07-04 1991-09-20 Thomson Composants Microondes SYSTEM FOR RECEIVING TRANSFERRED TV SIGNALS BY SATELLITES
US5327572A (en) 1990-03-06 1994-07-05 Motorola, Inc. Networked satellite and terrestrial cellular radiotelephone systems
JP2823318B2 (en) * 1990-04-28 1998-11-11 日本電気ホームエレクトロニクス株式会社 Satellite receiving system
US5115463A (en) * 1990-06-25 1992-05-19 David Moldavsky Extended cordless telephone system
JP2981259B2 (en) 1990-07-17 1999-11-22 関西電力株式会社 Same frequency radio repeater
JP2652264B2 (en) 1990-07-19 1997-09-10 国際電信電話株式会社 Interference canceller and transmitter / receiver
GB2249668A (en) * 1990-11-06 1992-05-13 Marconi Gec Ltd Antenna
KR960009969B1 (en) * 1991-04-12 1996-07-25 삼성전기 주식회사 Receiving tuner common used for a ground broadcasting and a satellite broadcasting
US5374938A (en) * 1992-01-21 1994-12-20 Sharp Kabushiki Kaisha Waveguide to microstrip conversion means in a satellite broadcasting adaptor
US5444762A (en) * 1993-03-08 1995-08-22 Aircell, Inc. Method and apparatus for reducing interference among cellular telephone signals
JPH0661900A (en) 1992-04-21 1994-03-04 Nec Corp Mobile body satellite communication system
JP3268469B2 (en) 1992-10-05 2002-03-25 マスプロ電工株式会社 Satellite broadcasting reception facilities
JPH06140976A (en) 1992-10-27 1994-05-20 N T T Idou Tsuushinmou Kk Mobile communication equipment
CA2105710A1 (en) 1992-11-12 1994-05-13 Raymond Joseph Leopold Network of hierarchical communication systems and method therefor
JPH0787011A (en) 1993-09-14 1995-03-31 Toshiba Corp Radio communication system, radio equipment and switch
US5541963A (en) 1993-12-01 1996-07-30 Hitachi, Ltd. Diversity receiving apparatus
US5483663A (en) * 1994-04-05 1996-01-09 Diversified Communication Engineering, Inc. System for providing local originating signals with direct broadcast satellite television signals
US5511233A (en) 1994-04-05 1996-04-23 Celsat America, Inc. System and method for mobile communications in coexistence with established communications systems
EP0707773A1 (en) 1994-05-06 1996-04-24 Koninklijke Philips Electronics N.V. Point-to-multipoint cellular television transmission system
JP3304019B2 (en) 1994-05-16 2002-07-22 株式会社日立製作所 ARRAY ANTENNA, RECEIVER HAVING THE SAME, AND METHOD OF DETERMINING DIRECTIVITY CHARACTERISTICS IN ARRAY ANTENNA
US5584046A (en) 1994-11-04 1996-12-10 Cornell Research Foundation, Inc. Method and apparatus for spectrum sharing between satellite and terrestrial communication services using temporal and spatial synchronization
JPH08251094A (en) 1995-03-15 1996-09-27 Hitachi Ltd System and method for satellite communication
US5659353A (en) * 1995-03-17 1997-08-19 Bell Atlantic Network Services, Inc. Television distribution system and method
KR970013687A (en) 1995-08-23 1997-03-29 이형도 Satellite and air broadcasting integrated tuner
KR0179104B1 (en) * 1995-12-29 1999-05-01 구자홍 Satellite channel hdtv incompatible with ground channel hdtv broadcasting
US5604508A (en) * 1996-01-05 1997-02-18 Kaul-Tronics, Inc. Antenna assembly and interface bracket for satellite and terrestrial antennas
JPH09214413A (en) 1996-02-07 1997-08-15 Sumitomo Electric Ind Ltd Radio repeating system
KR100537867B1 (en) * 1996-02-27 2006-06-21 톰슨 콘슈머 일렉트로닉스, 인코포레이티드 Combination satellite and vhf/uhf receiving antenna
JP2809179B2 (en) 1996-03-14 1998-10-08 日本電気株式会社 Radio broadcast communication system
US5761605A (en) * 1996-10-11 1998-06-02 Northpoint Technology, Ltd. Apparatus and method for reusing satellite broadcast spectrum for terrestrially broadcast signals
US6356737B1 (en) * 1996-12-01 2002-03-12 Claes Lorentz Uno Wellton Persson Terrestrial communication system using satellite transmission techniques
JPH09238113A (en) 1997-01-27 1997-09-09 Tdk Corp Satellite broadcast receiver
US20050215515A1 (en) 2004-03-29 2005-09-29 Claudio Bucolo Viscoelastic composition, method of use and package

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5038151A (en) * 1989-07-31 1991-08-06 Loral Aerospace Corp. Simultaneous transmit and receive antenna
US5515058A (en) * 1994-06-09 1996-05-07 Thomson Consumer Electronics, Inc. Antenna alignment apparatus and method utilizing the error condition of the received signal
EP0725456A2 (en) * 1995-02-06 1996-08-07 Hughes Aircraft Company Apparatus for positioning an antenna in a remote ground terminal

Also Published As

Publication number Publication date
WO1998017022A2 (en) 1998-04-23
US6208834B1 (en) 2001-03-27
US7853197B2 (en) 2010-12-14
HK1023462A1 (en) 2000-09-08
BR9712232A (en) 2000-08-22
US20060079176A1 (en) 2006-04-13
AU4750697A (en) 1998-05-11
US20010019942A1 (en) 2001-09-06
KR20000049084A (en) 2000-07-25
KR100415416B1 (en) 2004-01-31
US5761605A (en) 1998-06-02
CA2268393A1 (en) 1998-04-23
EP0934636B1 (en) 2004-12-29
CA2268393C (en) 2002-02-12
US6519446B2 (en) 2003-02-11
US6983123B2 (en) 2006-01-03
NZ335562A (en) 2001-03-30
EP0934636A4 (en) 2001-04-25
US6169878B1 (en) 2001-01-02
JP2001514810A (en) 2001-09-11
CN1238867A (en) 1999-12-15
WO1998017022A3 (en) 1998-09-03
AU721537B2 (en) 2000-07-06
RU2196386C2 (en) 2003-01-10
DE69732128D1 (en) 2005-02-03
ATE286328T1 (en) 2005-01-15
EP0934636A2 (en) 1999-08-11
US20030143965A1 (en) 2003-07-31

Similar Documents

Publication Publication Date Title
CN100359823C (en) Apparatus and method for reusing satellite broadcast spectrum for terrestrially broadcast signals
US6549242B1 (en) Combining adjacent TV channels for transmission by a common antenna
RU99109041A (en) METHOD AND DEVICE FOR RE-USING SATELLITE FREQUENCY NETWORK FOR OVERLOADING SIGNALS
JP2002506589A (en) Antenna for telecommunications system and transmission / reception method using such antenna
CA2166557A1 (en) Point-to-multipoint cellular television transmission system
US20150326304A1 (en) World-wide, wide-band, low-latency, mobile internet and system therefor
US6892050B1 (en) Apparatus and method for transmitting terrestrial signals on a common frequency with satellite transmissions
CN1152490C (en) Appts and method for reusing satellite broadcast spectrum for terrestrially broadcast signals
US20110068972A1 (en) Global communication system
AU762929B2 (en) Apparatus and method for reusing satellite broadcast spectrum for terrestrially broadcast signals
RU2000119617A (en) DEVICE AND METHOD FOR RE-USING SATELLITE BROADCASTING FREQUENCY FOR BROADCAST SIGNALS
US6643509B1 (en) Civil aviation communication system
MXPA99003334A (en) Apparatus and method for reusing satellite broadcast spectrum for terrestrially broadcast signals
AU2003254739A1 (en) Apparatus and method for reusing satellite broadcast spectrum for terrestrially broadcast signals
Makarov et al. Terrestrial complex for receiving information from small spacecrafts
Fagbohun Studies on Electric Field Strength Distribution of UHF Television Signal Propagation in Ekiti-State. Nigeria
Borodich SATELLITE TV BROADCASTING SYSTEM" EKRAN”

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: BROADBAND INVESTMENT CO., LTD.

Free format text: FORMER OWNER: DIVERSIFIED COMMUNICATION ENGINEERING INC.

Effective date: 20111123

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20111123

Address after: texas

Patentee after: Broadband Investments Ltd

Address before: texas

Patentee before: Diversified Communication Engineering Inc.

C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20080102

Termination date: 20121009